Check Digit Calculator

What is a Container Check Digit?

A check digit is used to detect errors in an intermodal shipping container number. The seventh digit of the container number also known as the check digit, is calculated off of the four letters and six digits of the container number. As
long as the container number follows the ISO standard, the container number can be entered into a check digit calculator to determine if it is a valid number.

Check Digit Calculator

Results

Example of a Check Digit Verification

MSKU2666542 [ Good ]

MSKU2666542 [ Good ]

MSKU2666542 [ Bad ]

Example of a Check Digit Calculation

MSKU2666542 [ 2 ]

MSKU2666542 [ 3 ]

MSKU2666542 [ 0 ]

Gulf Winds has done an exceptional job for WSS in assisting in the nationwide management of our in-house container moves. They are very pro-active and provide a top notch service. They are our premier vendor choice.

Brian Davis | Purchasing manager
Quorum international LP

Check Digit Calculator

Does your company also use container check digits and want to include this check digit calculator on your website? Its easy to add to any page with just 3 lines of code.